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Factors and levels used in the design of the experiments and statistical analysis (with α = 1.41) of the functionalisation procedure.
| Independent Variables (Factors) |
Levels | |||||
|---|---|---|---|---|---|---|
| −α | −1 | 0 | +1 | +α | ||
| A | Power (W) | 3 | 5 | 10 | 15 | 17 |
| B | Time (min) | 3 | 5 | 10 | 15 | 17 |
| C | Silica precursor (SiP) * | TEOS—APTES | ||||
* Categorical factor.
